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Chicago, IL vs Littleton, CO weather comparison

Chicago

IL

Littleton enjoys about 94 more sunny days a year than Chicago.

Chicago has around 47 fewer freezing nights a year. Littleton picks up around 11 more inches of snow each winter.

The year at a glance

Averages from 30 years of climate history, 1991-2020

Annual weather statistics for Chicago, IL and Littleton, CO
ChicagoMetricLittleton
180 daysSunny daysclear or partly cloudy skies274 days
39 inPrecipitationper year22 in
132 daysWet daysrain or snow per year105 days
37 inSnowfallper year48 in
16 daysHot daysabove 90 °F33 days
102 daysFreezing nightsat or below 32 °F149 days
71%Humidityaverage relative57%
52 °FAverage temperatureyear round51 °F

Monthly temperatures

Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.

ChicagoLittleton

Daily highs

406080JanMarMayJulSepNovChicago, Jan: 32 °FChicago, Feb: 36 °FChicago, Mar: 46 °FChicago, Apr: 57 °FChicago, May: 68 °FChicago, Jun: 78 °FChicago, Jul: 83 °FChicago, Aug: 81 °FChicago, Sep: 75 °FChicago, Oct: 62 °FChicago, Nov: 49 °FChicago, Dec: 37 °FLittleton, Jan: 46 °FLittleton, Feb: 47 °FLittleton, Mar: 55 °FLittleton, Apr: 60 °FLittleton, May: 69 °FLittleton, Jun: 81 °FLittleton, Jul: 87 °FLittleton, Aug: 85 °FLittleton, Sep: 77 °FLittleton, Oct: 64 °FLittleton, Nov: 53 °FLittleton, Dec: 45 °F

Daily lows

204060JanMarMayJulSepNovChicago, Jan: 20 °FChicago, Feb: 23 °FChicago, Mar: 31 °FChicago, Apr: 41 °FChicago, May: 51 °FChicago, Jun: 61 °FChicago, Jul: 67 °FChicago, Aug: 67 °FChicago, Sep: 60 °FChicago, Oct: 47 °FChicago, Nov: 36 °FChicago, Dec: 25 °FLittleton, Jan: 19 °FLittleton, Feb: 20 °FLittleton, Mar: 28 °FLittleton, Apr: 34 °FLittleton, May: 44 °FLittleton, Jun: 53 °FLittleton, Jul: 59 °FLittleton, Aug: 57 °FLittleton, Sep: 49 °FLittleton, Oct: 37 °FLittleton, Nov: 27 °FLittleton, Dec: 19 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago high323646576878838175624937
Littleton high464755606981878577645345
Chicago low202331415161676760473625
Littleton low192028344453595749372719

Monthly precipitation

Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.

ChicagoLittleton
0.02.04.0JanMarMayJulSepNovChicago, Jan: 2.4 inChicago, Feb: 2.1 inChicago, Mar: 2.8 inChicago, Apr: 4.5 inChicago, May: 4.4 inChicago, Jun: 4.0 inChicago, Jul: 3.6 inChicago, Aug: 3.8 inChicago, Sep: 3.0 inChicago, Oct: 3.3 inChicago, Nov: 2.8 inChicago, Dec: 2.4 inLittleton, Jan: 0.9 inLittleton, Feb: 0.9 inLittleton, Mar: 2.0 inLittleton, Apr: 3.0 inLittleton, May: 3.5 inLittleton, Jun: 2.3 inLittleton, Jul: 2.2 inLittleton, Aug: 1.9 inLittleton, Sep: 1.5 inLittleton, Oct: 1.7 inLittleton, Nov: 1.2 inLittleton, Dec: 0.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago2.42.12.84.54.44.03.63.83.03.32.82.4
Littleton0.90.92.03.03.52.32.21.91.51.71.20.9

Monthly sunny days

Days each month with clear or partly cloudy skies, so compare the same month between cities.

ChicagoLittleton
01020JanMarMayJulSepNovChicago, Jan: 10 daysChicago, Feb: 11 daysChicago, Mar: 14 daysChicago, Apr: 13 daysChicago, May: 15 daysChicago, Jun: 16 daysChicago, Jul: 20 daysChicago, Aug: 20 daysChicago, Sep: 20 daysChicago, Oct: 16 daysChicago, Nov: 14 daysChicago, Dec: 11 daysLittleton, Jan: 23 daysLittleton, Feb: 20 daysLittleton, Mar: 22 daysLittleton, Apr: 19 daysLittleton, May: 20 daysLittleton, Jun: 24 daysLittleton, Jul: 25 daysLittleton, Aug: 24 daysLittleton, Sep: 24 daysLittleton, Oct: 24 daysLittleton, Nov: 24 daysLittleton, Dec: 24 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Chicago101114131516202020161411
Littleton232022192024252424242424

Keep comparing

Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.

Chicago vs another city

See the full Chicago, IL climate profile

More Illinois cities

Littleton vs another city

See the full Littleton, CO climate profile

More Colorado cities

About this data

Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).